Apparatus for treating garbage.



J. A. ANDERSON;

APPARATUS FOR TREATING GARBAGE.

Patented May 22, -1917.

APPLICATION FILED APR. 5. 1916. 1,227,232.

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J. A. ANDERSON.

APPARATUS FOR TREATING GARBAGE.

APPLICATION FILED APR. 5, l9l6.

1,227,232. Patented May 22,1917.

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WITNESS I I INVE/VTUH h' /;4/ ATTORNEYS.

JAMES A. ANDERSON, or new YORK, N. Y.

APPARATUS FOR TREATING GARBAGE.

Specification of Letters Patent.

Patented May22, 1917.

Application filed April 5, 1916. Serial No. 89,092.

To all whom it may concern:

Be it known that I, JAMES A. ANDERSON,

a citizen of the United States, and resident of Barren Island, county of Kings, city and State of New York, have invented certain new and useful Improvements in Apparatus for Treating Garbage, of which the follow ing is a specification.

This invention relates particularly to an apparatus for treating garbage, wherein the material is placed in a series of tanks and is subjected to heat and to a grease solvent. Heretofore it has been customary to use steam under a high pressure as a heating means, thereby requiring very strongly constructed double-walled tanks in which stay bolts have been necessary in order to brace the tanks sufliciently to withstand the high pressure. These stay bolts are frequently the cause of a leakage of 1 steam into the tanks containing the garbage and solvent. It is manifest that whenever these leaks occur the temperature of the steam is reduced and the cooking and recovering process is very much retarded, and excess moisture will accumulate in the garbage.

It is the main object of this invention to provide an apparatus wherein the cooking is accomplished by means of hot air circulated through properly constructed tanks and through suitably constructed air heating means, whereby a more cheaply constructed tank may be used, and all danger of excess moisture finding its way into the garbage material is avoided.

Another object of the invention is to provide means whereby the heated air will flow in a continuous and unbroken circuit through the heating means and through the garbage treatment tanks, whereby when the air is once heated it may be circulated and maintained at a high temperature at a low expenditure of power.

Another object of the invention is to provide means whereby the supply of air to the tanks will be automatically regulated by the temperature-of the tanks. By means of this apparatus excessive temperatures will be avoided. The thermostatic control devices will operate in such manner that the flow of heated air to a tank which is at the proper temperature will be restricted, and the flow of heated air to a tank which is below the desired temperature will be at the maximum quantity.

to pass into the heating space. c:

There are other objects and advantages of the invention which will appear more fully hereinafter.

In the drawing, Figure 1 is a plan view of the apparatus; 7 v

Fig. 2 a horizontal sectional view of one of the cooking tanks;

Fig. 3. a longitudinal sectional view on the line IIIII-I of Fig. 1, of a portion of the air heating means;

Fig. 4 a sectional View on the line IVIV of F ig..a 1, of the air heating apparatus; and Fig. 5 asectional view on the line VV of Fig. 1. V

Referring to the various parts by numerals, 1 designates the cooking tanks which consist of an inner tank 2 and an outer tank 3, a heating space 1 being formed between said tanks. Within the inner tank is mounted a rotary stirring device 5 whichrows or series of tanks is arranged a large exhaust flue 7 Each row or series of tanks is provided with a supply flue 8, said flue being connected to the heating space of each of the tanks by a short supply flue 9. The heating space of each tank is connected to the exhaust flue througha short flue connection 10. In this flue connection is mounted a damper 11 which is provided externally with an adjusting handle 12 by means of which the damper'or valve may be set at the desired angle to restrict or close the flue 10. In each of the supply flues 9 is mounted a valve 13 which is connected by means of movement-multiplying levers 14, to a the1- mostatic device 15. This latter device is connected to the heating space 4: so that it will respond to the temperature of said heating space. The movement-multiplying device is so connected to the thermostat that when the desired temperature is reached in the heating space 41 of the connected tank, the valve 13 will. be closed, or nearly so, in order to restrict the supply of highly heated air to the said tank. Whenever the temperature in the heating space 4: is reduced below that required for the successful operation of the apparatus, the damper or valve 13 will be swung to open the flue 9 and permit a larger supply of the highly heated air By means of the thermostatic control of the air sup ply those tanks in which the temperature is at the desired degree will receive less of the heated air than those in which the temperature is below the desired degree. By means of this, the tanks which are at the lowest temperature will receive the greatest amount of the highly heated air, and those which are at the highest temperature will receive the least of the highly heated air, so that the delivery of the heated air will be automatically controlled and excessive temperatures inthe tanks prevented.

To preliminarily heat the air I interpose between the smoke stack and the battery C of power or steam boilers, an air heater 16. This heater may be of any suitable construction, but as shown it consists of a large flue 17 through which extend air pipes 18. These pipes at their lower ends open into a chamber 19 and at their upper ends open into two chambers 20 and 21. Chamber 21 is connected to a blower casing 22, the suction end of which is connected to the suction or exhaust fine 7. By this arrangement the blower 22 will draw the air through the suction or exhaust flue 7, force the chamber 20.

ture furnaces.

it into chamber 21, then down through the pipesinto chamber 19,, from which it will pass upwardly through air pipes 18 into By this means the air will pass twice across the furnace flue and will be preliminarily heated by the furnace gases as they pass to the stack 23. From the chamber 20 the preliminarily heated air passes into the primary air heater 24: which is connected to a battery D of high-tempera- These furnaces are used purely for the purpose of heating the air to a very high temperature, and the gases therefrom pass through chamber 25 through which extends a large number of pipes 26. The lower ends of these pipes open into a chamber 27 and the upper ends of about one-half of said pipes open into an extension 20 of the chamber 20, so that air passing into chamber 20 will flow through the extension 20 and down through the pipes 26 connected thereto, and into the chamber 27. From said chamber the air will flow upwardly through the other pipes 26 into the chamber 28, and from said chamber it will flow into a flue 29. This flue 29 is connected to the supply flues 8.

It is manifest that the air will flow inwhat might be termed a closed circuit, pass ing first through the preliminary heater 16, thence" through the primary heater icon nected to the high-temperature furnaces, thence through the flue 29 to the supply flues 8; 'From'these flues the highly heated air will flow through the supply flues '9, and through the heating spaces 4' of the".-

tanks; and from thence will'be exhausted or drawn into the exhaust or suctionflue 7. By adjusting the valves 11 in theflues 10 the proper distribution of the highly heated air may be secured and a proper flow of air through each tank insured.

It is manifest from this arrangement of the air heating and supplying apparatus,

that there will be no loss of temperature due to the dissipation of the heated air. The air which is drawn from the heating spaces of the tanks will be forced directly ends connected to the inclosing tank, an air V heating means interposed in said flue, and an air forcing means adapted to create a continuous flow of air through the heating means to the inclosing tank and back through the heating means.

2. An apparatus for treating 1 7 gal cage comprising an inner garbage-holding tank,

an inclosing tank forming a heating space around the inner tank, an air flue havlng ts ends connected to the inclosing tank, an air heating means interposed in said flue, an air forcing means adapted to create a continuous flow of air through ,the heating means to. the inclosing tank and back through the heating means, and an automatically operated temperature controlled means for regulating the admission of air to the heating space.

An apparatus for treating garbage comprising an inner garbage-holding tank an inclosing tank forming a heating space around the inner tank, an air flue having its' ends connected to the inclosing tank, an air heating means interposed in said flue,

an air forcing means adapted to create a continuous flow of air through the heating means to the 1nelos1ng tank and back through the heating means, and a valve in the return portion of the flue for regulating the withdrawal of air. from the heating space.

4. An apparatus for treating garbage comprising an inner garbage-holding tank,

an inclosing tank forming a heating space around the inner tank, an-air flue having its ends connected to theinclosing tank, an airheating means interposedjin said flue,'an air forcing means" in said flue adapted to'create a continuous flow of air through'the heating means to the inclosing tank and back through the heating means, a valve in the supply portion of said flue for regulating the admission of air to the heating space, temperature-controlled means for operating said valve, and a valve in the return portion of the flue for regulating the withdrawal of air from said heating space.

5. An apparatus for treating garbage comprising a series of inner tanks, an inclosing tank around each of said inner tanks to form a heating space, an exhaust flue connected to the heatingspace around each of said tanks, a supply flue connected to the heating space around each of said tanks, a valve controlling the exhaust of air from each of said heating spaces, an automatically operating temperature-controlled valve for controlling the supply of air to each of said tanks, an air heating means interposed between the supply flue and the exhaust flue, and means for causing a circulation of the hot air from the heating means to the tanks and from the tanks back to the heating means.

6. An apparatus for treating garbage comprising a series of inner tanks, an inclosing tank around each of said inner tanks to form a heating space, an exhaust flue connected to the heating space around each of said tanks, a supply flue connected to the heating space around .each of said tanks, a valve controlling the exhaust of air from each of said heating spaces, an air heating means interposed between the supply flue and the exhaust flue, and means for causing a circulation of the hot air from the heating means to the tanks and from the tanks back to the heating means. 7. An apparatus comprising a series of inner tanks, an inclosing tank around each of said inner tanks to form a heating space, an exhaust flue connected to the heating space around each of said tanks, a supply flue connected to the heating space around each of said tanks, an automatically operating temperature-controlled valve for controlling the supply of air to each of said tanks, an air heating means interposed between the supply flue and the exhaust flue, and means for causing for treating garbage a circulation of the hot air from the heating means to the tanks and from the tanks back to the heating means.

8. An apparatus for treating garbage comprising an inner garbage-holding tank, an inclosing tank forming a heating space around the inner tank, an air flue having its ends connected with the inclosing tank, an air-heating means interposed in said flue, an air-forcing means interposed in said flue and adapted to create a continuous flow of air through the heating means to the inclosing tank and back through the heating means, and means for automatically controlling the admission of air to the heating space.

9. An apparatus for treating garbage comprising a series of inner tanks, an inclosing tank surrounding each inner tank to form a heating space, an exhaust flue connected to the heating space around each inner tank, a supply flue connected to the heating space around each inner tank, an air heating means interposed between the supply and exhaust flues, means for causing a circulation of air through the heating means and the heating spaces surrounding the inner tanks and back through the heating means, and means for independently controlling the quantity of air passing through each heating space.

10. An apparatus for treating garbage comprising a series of inner tanks, an inclosing.tank surrounding each inner tank to form a heating space, an exhaust flue connected to the heating space around each inner tank, a supply flue connected to the heating space around each inner tank, an air heating means interposed between the supply and exhaust flues, means for causing a circulation of air through the heating means and the heating spaces surrounding the inner tanks and back through theiheating means, and automatic thermally-controlled devices for independently controlling the quantity of air admitted to each heating space.

In testimony whereof I hereunto aflix my signature.

JAMES A. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

